I did try to run 32m using my MVG instead of the asrocker and times are terrible with it. I must be missing some setting in the bios or something because it's pretty much the same OS as I used with the asrocker and it's right around 8min.
I was referencing your "Real Memory" .. this value moves a little depending on hardware setups.. but from my experience its around 20-40MB's over your set MM limit in OS.
**For me: testing wazza - I just sit in OS with 2x HDD's open and create file sizes and cut/paste, as I monitor my available memory peaks after the task completes. The higher the available mem I can reach.. the better. I generally start with a 632MB dat file and go up in size from there [getting me slightly better result than 1.82GB file so far].. you can do this at any clock speed once your OS is setup.. no need to bother actually running Pi until you have a good file Im certain others do more.. but this is effective for me.
" fsutil file createnew E:\wazaaa1.dat 637168000 "
" fsutil file createnew E:\wazaaa2.dat 1911504000 "